An investigation of three-body effects in intermolecular forces II: Far-infrared vibration—rotation—tunneling laser spectroscopy of Ar2HCl

Title:
An investigation of three-body effects in intermolecular forces II: Far-infrared vibration—rotation—tunneling laser spectroscopy of Ar2HCl
Authors:
Elrod, Matthew J.; Steyert, David W.; Saykally, Richard J.
Abstract:
A second Ar2HCl intermolecular vibration—rotation band centered at 37.2 cm-1 has been measured and assigned as a b-type transition originating from the ground state. Nuclear hyperfine splittings were resolved for both chlorine isotopes. The rotational constants determined from the data indicate coupling between an Ar—Ar stretching or bending coordinate and the Ar2 —HCl vibrational coordinates. As a result of this particular vibrational motion, Ar2H 35Cl undergoes an axis-switching transition while the Ar2H 37Cl isotope does not. In addition, the measured hyperfine projections indicate the possibility of coupling between the Ar2 —HCl stretching and bending modes, preventing an absolute vibrational assignment. These results indicate that the ‘‘reversed adiabatic’’ approximation employed by Hutson, Beswick, and Halberstadt in their theoretical study of Ar2HCl [J. Chem. Phys. 90, 1337 (1989)] is not appropriate for the complicated intramolecular dynamics presently observed in this system.
Citation:
Elrod, M.J., D.W. Steyert, and R.J. Saykally. 1991. "An Investigation of Three-Body Effects in Intermolecular Forces II: Far-Infrared Vibration—Rotation—Tunneling Laser Spectroscopy of Ar2HCl." Journal of Chemical Physics 95: 3182.
Publisher:
American Institute of Physics
DATE ISSUED:
1991-09-01
Department:
Chemistry
Type:
article
PUBLISHED VERSION:
10.1063/1.461799
PERMANENT LINK:
http://hdl.handle.net/11282/309817

Full metadata record

DC FieldValue Language
dc.contributor.authorElrod, Matthew J.en_US
dc.contributor.authorSteyert, David W.en_US
dc.contributor.authorSaykally, Richard J.en_US
dc.date.accessioned2013-12-23T16:18:33Zen
dc.date.available2013-12-23T16:18:33Zen
dc.date.issued1991-09-01en
dc.identifier.citationElrod, M.J., D.W. Steyert, and R.J. Saykally. 1991. "An Investigation of Three-Body Effects in Intermolecular Forces II: Far-Infrared Vibration—Rotation—Tunneling Laser Spectroscopy of Ar2HCl." Journal of Chemical Physics 95: 3182.en_US
dc.identifier.issn0021-9606en_US
dc.identifier.urihttp://hdl.handle.net/11282/309817en
dc.description.abstractA second Ar2HCl intermolecular vibration—rotation band centered at 37.2 cm-1 has been measured and assigned as a b-type transition originating from the ground state. Nuclear hyperfine splittings were resolved for both chlorine isotopes. The rotational constants determined from the data indicate coupling between an Ar—Ar stretching or bending coordinate and the Ar2 —HCl vibrational coordinates. As a result of this particular vibrational motion, Ar2H 35Cl undergoes an axis-switching transition while the Ar2H 37Cl isotope does not. In addition, the measured hyperfine projections indicate the possibility of coupling between the Ar2 —HCl stretching and bending modes, preventing an absolute vibrational assignment. These results indicate that the ‘‘reversed adiabatic’’ approximation employed by Hutson, Beswick, and Halberstadt in their theoretical study of Ar2HCl [J. Chem. Phys. 90, 1337 (1989)] is not appropriate for the complicated intramolecular dynamics presently observed in this system.en_US
dc.language.isoen_USen_US
dc.publisherAmerican Institute of Physicsen_US
dc.identifier.doi10.1063/1.461799en
dc.subject.departmentChemistryen_US
dc.titleAn investigation of three-body effects in intermolecular forces II: Far-infrared vibration—rotation—tunneling laser spectroscopy of Ar2HClen_US
dc.typearticleen_US
dc.identifier.journalJournal of Chemical Physicsen_US
dc.subject.keywordIntermolecular forcesen_US
dc.subject.keywordLaser spectroscopyen_US
dc.subject.keywordHyperfine structureen_US
dc.subject.keywordRotational statesen_US
dc.subject.keywordVibrational statesen_US
dc.subject.keywordIsotope effectsen_US
dc.subject.keywordChlorine 35en_US
dc.subject.keywordChlorine 37en_US
dc.subject.keywordHydrochloric aciden_US
dc.subject.keywordAragon chloridesen_US
dc.subject.keywordThree-body problemen_US
dc.subject.keywordFar infrared radiationen_US
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